The question is, Will the amp fit under the seat. Forget about under the drivers side. There is a chance, depending on how high your amp is, it might fit under the passenger seat. If it does, you will have to remove the seat, and prob have to install shims to make the amp sit flat. You can use self tapping screws to mount it. Put a dab of GE clear caulking on the threads and then drive them in the floor. The caulking will help prevent rusting and water comming inside the cab.